14545697909 has 2 divisors, whose sum is σ = 14545697910. Its totient is φ = 14545697908.

The previous prime is 14545697897. The next prime is 14545697977. The reversal of 14545697909 is 90979654541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14484122500 + 61575409 = 120350^2 + 7847^2 .

It is an emirp because it is prime and its reverse (90979654541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14545697909 - 2²⁰ = 14544649333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14545696909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7272848954 + 7272848955.

It is an arithmetic number, because the mean of its divisors is an integer number (7272848955).

Almost surely, 2^14545697909 is an apocalyptic number.

It is an amenable number.

14545697909 is a deficient number, since it is larger than the sum of its proper divisors (1).

14545697909 is an equidigital number, since it uses as much as digits as its factorization.

14545697909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12247200, while the sum is 59.

The spelling of 14545697909 in words is "fourteen billion, five hundred forty-five million, six hundred ninety-seven thousand, nine hundred nine".